Just picked up a Broadlink RM3 Mini IR Blaster for one of my ac units and figured I'd share my method for getting it to play nice with Hubitat and vThermostat. I am aware that there is a Broadlink app by @cybrmage, but 1) it's withdrawn and 2) I couldn't get it to recognize my Broadlink.
I used Alexa as a bridge to get from Hubitat to Broadlink. There are skills for both of them. Alexa can fully control any devices set up in the Broadlink app. Then I added a virtual contact and switch in Hubitat. Alexa wouldn't support a virtual switch as a trigger. The virtual contact has 2 rules set up. When the switch turns on, the contact closes, and when the switch turns off, it opens. This allows vThermostat to use the switch as the cooling device. From there the contact goes in as a trigger for routines in Alexa. One routine for Broadlink AC power on (contact closed) and one for power off (contact open). Now my digital AC works just as well as my "dumb" units that are on zooz plugs.
TL;DR: Temp Sensor -> vThermostat -> Virtual Switch -> Virtual Contact -> Alexa Routine - > Broadlink-> AC unit